Machine for molding ceramics.



D. W. McNEIL.

MACHINE FOR MOLDING CERAM|CS.-

APPLICATION EILED MAR-4,1914.

Patented Jan. 15, 1918.

4 SHEETS-SHEET 1.

I 7 1 i r: 1 a a 4 i 1: I a v llll'll mil" III [7 D. W. McNEIL.

MACHINE FOR MOLDING CEHAMICS.

APPLICATION FILED MAR.4. 1914. 1,253,405, Patented Jan. 15, 1918.

4 SHEET5, SHEET 2.

II S V D. W. McNEIL.

MACHINE FOR MOLDING CERAMICS.

APPLICATION FILED MAR. 4. 19:44

Patented Jan. 15, 1918.

4- SHEETS-SHEET 4.

- 66 15,; w th Tr m 1 d STATES PATENT OFFICE.

w. .iilcNElL; or crncmnhm; onio, AS QiGNQI B) romimgonn Donates courm, or cmcmmmr, carom coneomrzon or 01110.

' fn cnme on, ,ironnnto :cnn nros.

"n m nee eme a Patented Jan. 15, 1918.

' ippwoweew le e -m Jib-e it mamemit-e o the edi ed e e e emeriee, and resident of Gincinneth'cqunty "of Hamilton, 5 State otOhio, heveinyented certain,

r new and useful Improvements in, lyleehinesf ior Molding Ceramics, of which the follow is e specificetion,

in lfhi's invention relates to improvements in If! new for mo ding ee 'e s, ndfi s enhbject t'o'prodnce a macliine-.s;dapted to,

"n101d'artieleshevin a flange orrimend in which articles may e moi ed'more'quickly. and with more nniform consistency than Th' endother objectsere attained 1n the machine des ribea in the following sp fiet e a leet et hee e e e yigureiiis 'a perspective yiewlo fthe maehiiie xnhqg yingmymventi n e the ,seetienal line 3, to fFig.1.'Iig. I n i 1, ee ie Vie =9! t e WP i fnli i teiwin t p b er pee trow back, to inte m of the mold- .Figs.. 5 and 6 re 'eispeetive top and hot om iewereeee lym e twle in the mechine. H ig'. '7 is a fragmental sec tstion'al vi w of a'p'ortion' of the apparatus illustrated i Fi bu Sh WIi t a s Tifiq nt: ree tie e etive t The machine illustreted es" an embodiment my in eet t s e be se n te m te 4 e gi of. flus tan s,

a d compete ewe-p r ing nam 7 Me scoping "mold 8; Qceted, atxthetop of the me ndy ei new ope i g meek th m T br'ou htt bear tocompress therubber p11- ism .9, meun 'e h fr me b ne h mold.

Th fireme 'eone ts of up i bm members 10, which are held together get the e 't m. of bas a -1. e e he P i in apron' h 1n shar to wafer! to t e Oute c u i theertle e to be molded, as for examp'1e,the-

. eoversii own in Figs; bend it This cham,

beris closed I at; ate" t em b 1;; mold plate h We:

, cured to the underside ofthe 16. PeSS: mg throngh these pillars are bolts 39, which heb P ted 01 e-bloek 41, wh h g -th epin wrench, which is inserted 1n holes pro- A mold when in its mold-receiving. Qsition ger vlefly edep dt tc is iormed iith a depend pe ti n 3,. hl b h w th he p1ete,1 ne10see'chember 1d, made s1ide' snugly withinithe chamber 1i and is ovidetl withaeentral openin' 18 inwh-ieh y, hu fli G l9, whioh is adapted :to form-the bee 20 of the eover and'a, flat portion 21, which forms the bearing face 22 ofthe cover, while the center portion :17 is adapted to form the depressmn 28 of the. cover, with its lugs 24; and .25. This center portion-is mounted on resilient members, such as rubber pillars 37, whichere supported by a plate 38, se-

are secured at their upper ends to the inner l qrtion 17, as shown, end pass freely throngh Q Q nin in th r w 8, w h n t m ne e 1y mounted onit je threaded lowe en, sot

' heibe t nfiii ld Plat 1 5 is see c er- 2o: a p sto 31oe e in e, awe 1icJcy1in$14 ,monnted-on the belseibers 11, of the' frame. Block'l' is formed with notches 41*, 41, into Whioh the bolts 39 and adjustable nuts 40 extend Adjustment of the nuts 40 is vaccomplished by means of vided in the nuts, and by so adjusting them, the height oiathermner ortion 17 of the bottom mold plate 1 5,is 'asj u sted in reletion tq its isur'roiinding run 16. The purpose of this, adjustment is to regnletethe depth oi the Shown in; Fig. 3, in order .to enltb e 'it .to' receive the, P iQPm. lfimQllnt of material to form the cover; It will be seen that the in ner portion 17 is movable with relation to l 6, when s iflicient force, has been Jaded; These pins are mounted in holes formedin the center portion 17 oi the mbld 1 and in the inoperative position thereof, they occupy the positions shownin- Fig. 7,,in

which positions thefends ofthe pins lieybe- I -;nee th the upper surface, of portion 1-7.

When, however, the mold parts have been brought to oocupyt e positions shown in Fi t P e re p r y by. '19

plate 38 until their ends are forced into the molding material above portion 17, this forming the impressions 24 and 25 in the cover.

The top of the mold is formed in the .un-

'der surface of the cover plate 26, which is complished by the mechanism shown in Fig.

4, and is for the purpose of facilitatingthe screws 35 and 86, and -t B removal of the molded tank cover from the machine after it has been formed. This mechanism consists of two rods 29 and 30, which are secured to the plate, as shown in Fig. 3, and are moved through inclosing tubes '31 and 32 by means of an operating lever 33, pivotally mounted on a rod .34, extending upwardly from-the cover 26. When the lever is operated to move the plate to the position shown in dotted lines in Fig. 4, screws 35 and 36, which hre mounted in theends' of tubes 31 and 32, are 0 erated to clamp the rods and plate in the el vated position shown.

. The admissionof water under pressure to the cylinder 44, throu' h ipe 45, causes piston 43 to rise with mo d p ate and to comfigess the molding material located in chamr 14, between the to and bottom mold plates, to form the artic e'to be molded.

In order to prevent the top mold plate from being forced out ofv osltion with the body 12.. and 13 oi the mol a lock bar 46 is provided, which is pivotally mounted at oints 47 on the base of the. frame and is ormed with a projection or In 48, adapted to move ,intoalampingandl enga mentwith-the top surfaceyof theplate 6, asshown in Fig.3, its vfrictionalengagement therewith bein suflicient to maintain-it in this positioni n itsnormal or released 0- sition, it rests a ainst a rod 49, extending es tween rearwa the frame y projecting members 50 oi ,Inoperationyl I p .Let it b assumed that the cover 26' is ocjcupying the position shown in Fig. '4, while the movablerim 16' and center portion 17- of the bottom" mold plate is oceupying the positions shown in Fig. 3.j' The mold is now entirely-filled with potters dust containing a certain amount of water.

. Plate 28 is nowlocked in the position shown in full lines, Fi 4,-by means ofthe I he cover 26 is turned over to rest upon the top 6-! the mold. Lock bar ,46 is then swung into place, sothat its.

loclfing lug 48' eng '26- as shown in Fig. 3

igh pressure.

ages the top of the plate.

aterisadmitted a} the i els and eyl- & inder44 and ispumped to a I At this point,- the upward movement of the center portion 17 of the bottom mold plate is arrested, and the rim 16 continues its upward movement. As the rim moves up, plate 38 contacts the bottom of the center portion 17 and boththe rim and center portion are forced upwardly to the position shown in Fig. 2. efore plate 38 contacts center ortion 17 however, to force it to rise, pins 1 and 17 are forced into the molding material, as

shown in Fig. 2, thereby forming the holes 24" and in the cover..

The air contained in the loosely packed material contained-in the mold air passages 51, formed around the loosely fitting P e the molding material 15 gradually com d; l

The molding operation having now been completed, the water in pipe and cylinder 44 is released. The piston moves to its normal position, and the movable bottom fiie mbers of the mold are permitted to move tothe positions shown in Fig. 8. Themolded cover will remain in position ainst the cover plate of the mold, however, ause of the suction or friction created I)? the cover occupying the concave space 0 tom mold plate is removed in sections. in.

stead of the entire plate beingremoved-at one-time.- When the. bottom of the mold revious to compression, 18 caused to escape t rough they the cover plate 26, and also because the lower or botmovesaway from the molded covet-l,1 the rim 16 first moves downwar toge er. with the pins 17' and 17 thus Ii'sing'the suction created between the m'ed'co'ver, and-the bottom mold plateto be portion 17 is held against-the molded eover y the compressed rubber pillars 37,, when I IlIIl 16 is moving downwardly,"in order to v prevent breakage of the freshly'molded' cover and, 'to preventrit from being w th' drawn from the top cover plate 26.. l .After rim 16 and its mounting pla 3 8 have moved downwardly suificiently. at to permitthe nuts 40 to contact theunderface of late.38,'the ,o'rtion' 17 will be:

withdrawn; from the moded coverand will I connected parts-"iii; .the'jposimove with tionnshown in Fig. 8; I

v bar 46 isnow thrown back so tli rests against cross bar 49. Cover plate 26ris lifted and moved to a position at the .of the machine,as shown in Fi 4 .1 The molded cover; becausefo the s onor friction existingbetween 'it and; the cover 11C roken. The OODWI'J;

Iii

plate "position outside of the mold and is removed by rcleasingthe screws 35 and 36 andthen carefully operating lever 33 to lift the center plate 28 of cover plate 26, so that the molded cover will not be broken in lifting it from curved molding surface of plate 26. Havingbeen lifted on plate 28, to the position indicated by dotted lines, Fig. 4, it maybe easily removed and placed in the drying room, ready for glazing and baking.

Having thus described my invention, what I claim is:

1.. In a mold for com ressing an article having-a flange, the com ination of a wall adapted to contact with one side of the articlc, a wall, opposite said wall and consisting of a central portion and a portion surrounding and separated from said central portion, a plate adjacent to and adapted to contact with said surrounding portion, elastic members between said central portion and said plate, and means for reclprocatmg the plate, said walls having a space between them for the reception of material to be compressed.

2. In a mold for compressing an article having a flange, the combination of a wall adapted to contact with oneside of the article, a wall opposite said wall and consisting of a central portion and a portion surrounding and separated from said central portion, a plate adjacent to and adapted to the body portion, such contact with said surrounding portion, elastic members between said central portion and said plate, means for reciprocating the plate, pins mounted upon said plate, proecting to a point below the inner wall of the cel-utral portion and adapted to project beyond said inner wall, when the plate has reached the inner limit of its travel.

3. In a mold for forming an article having a central portion surrounded by a flange, the combination of a chamber-inclosing body portion, a top mounted upon the body portion and a bottom reci rocally mounted in ttom consisting of a rim to contact with the flan e, a central portion adjustably and remova lymounted in the rim, adapted to have restricted move- 5 ment relatively to the rim and to contact with the central portion of the article, means for imparting simultaneous movement to the, rim and the central portion until the latter] exerts a predetermined pressure npon the 55 central-portion of the article, andmeans for continuln the movement of the rim until it exerts a similar pressure upon the flange of the article.

-In testimony whereof, I have hereunto to subscribed my name this 2nd day of March,

DANIEL W. MONEIL.

Witnesses:

W. THORNTON Boona'r, B. R. Knorr. 

